Friday, October 30, 2009

Cloud Computing - What is it?

"Soon thereafter, everything we are using will stay in the cloud!"

Well, what does really "Cloud Computing" means?

Salesforce.com has a pretty decent explanation about cloud computing on how this operates between the user and within the Internet. Cloud means, the Internet. Conceptually, Cloud Computing is designed to make abstracted behind the users of the software, where no need for in-depth knowledge of some specific software. Actually, Cloud Computing will be far more adapted
for so many years.

Watch this movie from Salesforce.com:


Well, why should I say that? Well, as we all know, globally, we are down with such crisis. Financially really hit many countries down, specially the United States of America (well, thanks God, this happens because alternatives are arising!). Cloud computing doesn't want you to buy or pay every applications you use. It does only counts every time you use your applications, basing on how much have you used or scaling your statistics of usage with the applications you have utilized, by either personal, business, or some social networking. It's actually ideal and of course, economical.

I would say, Cloud Computing has a vast idea behind other known computing development technology, such as Grid Computing and Utility Computing.

And what are those things might we consider as disadvantages of this?
Well, this is really tough for us, like Software Engineers. Since users behind the cloud computing, it's predictable that it's rapid
growth of traffic, and of course subscription, might deliver from pain-in-the-ass sticking in our neck. Well, it's very tough, of course, to handle such a massive amount of networks, but if a good or perfect algorithm has been appropriately applied and involved as a practice, as well as smart people are living in, well, this can be just a plain documentation.

Cloud computing is much known for running virtualization which is, typically a perfect tool because, cloud computing involves cost-cutting, of course! What's the benefit of this approach, if we don't think of a much better solution, isn't it?

As of today, various companies are really developing on these stuffs. IBM has their Autonomic Computing, which heals by itself, fix itself, and it does also optimization being transparent to the user. I actually love how their algorithm behind it's philosophies are applied. It follows actually how our motor neurons work. Sounds interesting? Well have a visit on their page http://www.ibm.com/autonomic/.

With all these stuffs, I'm so happy that these various technologies, including Cloud Computing is emerging. It phases our knowledge, mind, and impossibilities to possibilities where people can think of various alternatives for a better live, in virtual world.

Thursday, October 29, 2009

Installing wpa_supplicant in Slackware

Ever since I'm connecting to my wireless router WRT54GL from LinkSys, I never thought of WPA and the wpa_supplicant for my Slackware Linux box. I do connect through WEP security mode for my encryption algorithm. I know it's just a basic authorization for my wireless, instead with wpa_supplicant for WPA, until I found out that my neighbors are abusing my connection, and don't want my stuffs to be exposed.

It was funny actually when my neighbors approach me and ask me if I'm the owner of that connection that they able to detect, and say, "hey, don't put any password on that". Really, it sounds daring and hilarious but rude.

I do connect from my Slackware Linux via shell using the commands:

$> ifconfig wlan0 up

$> iwlist wlan0 scan
$> iwconfig wlan0 essid "myssid" key "8EEDEEFE41"

$> dhcpcd wlan0

The first command will take my wireless LAN card to be up, which actually down during start up. Somewhat like, disable and enable if in Windows environment. The second command will scan for available wireless connections in my area. It's actually fine to not do this, but I do usually check how my wireless status is, and if I have some available connections that I can reach through, that is lurking for some free connections. The third command will be the one to grant me access for my router and lastly, dhcpcd will connect the interface through the Internet.

WEP, which stands for Wired Equivalent Privacty, is already a deprecated algorithm for wireless connections. There are actually lots of issues with its algorithm for being weak and is also susceptible to be hacked easily. I remember, I found some videos in the Internet able to grant the WEP key but there's a lot of tools involve to achieve this. Because of those things, I choose to use WPA.

That's all about with WEP!!!


WPA stands for Wi-Fi Protected Access. My setup is just simple, achieving to connect through my WPA setup in my wireless network. Installing wpa_supplicant is easier through Slackbuilds, though I use the binary package, the .tgz file for my installation.

So I downloaded the package for wpa_supplicant for my Slackware at http://connie.slackware.com/~alien/slackbuilds/wpa_supplicant/pkg/12.0/wpa_supplicant-0.5.9-i486-1.tgz at http://connie.slackware.com/~alien/slackbuilds/wpa_supplicant/pkg/12.0/ list.

Then issue the command:
$> installpkg wpa_supplicant-0.5.9-i486-1.tgz


Afterwards, I move first the original file named /etc/wpa_supplicant.conf to /etc/wpa_supplicant.conf.backup and edit the contents leaving only the required things I need to have for my connection. My ssid is "myssid" and the WPA shared key is "mysecretcode".

I then issue the command:
$> wpa_passphrase myssid mysecretcode

and the output is:
network={
ssid="myssid"
#psk="mysecretcode"
psk=9130f740db6dfd521e34dd89524221d66b8be1dbeeaa0b0a2131f81807374265
}
So I edit the file with my favorite editor, vi
$> vi /etc/wpa_supplicant.conf


With contents:
ctrl_interface=/var/run/wpa_supplicant

ctrl_interface_group=0

#eapol_version=1
#ap_scan=2
fast_reauth=1

network={

ssid="myssid"
proto=WPA
key_mgmt=WPA-PSK

pairwise=TKIP
group=TKIP
#psk="mysecretcode"

psk=9130f740db6dfd521e34dd89524221d66b8be1dbeeaa0b0a2131f81807374265
}

As you can see, I put the generated psk after I ran the command wpa_passphrase.

Afterwards, I run this command:
$> wpa_supplicant -B -Dwext -iwlan0 -c/etc/wpa_supplicant.conf

Where
-B = runs in the background
-D = specifies the driver to use. Mine is generic, which is shifted by Intel, so I use wext.
-i = specifies the interface to listen
-c = specifies the path of the configuration file.

In my opinion, I don't like to configure my stuffs automatically during start up, instead it would be great to create a bash script instead of putting them in somewhere else while I might forgetting them.

Afterwards I do:
$> ifconfig wlan0 up
$> dhcpcd wlan0
$> ping toytoygogie.blogspot.com

For some external resources, I recommend http://www.thinkwiki.org/wiki/Wpa_supplicant this page, so check it out.

Although there are some reports about the algorithm of WPA specially with TKIP, my guide here is to achieve installing wpa_supplicant in Slackware Linux. I will post more about the exploits that WPA encounters soon.

Wednesday, October 28, 2009

Prosperity - List of Countries in 2009

In reference from the site of Prosperity.com, please see the image posted below for the list of country rankings for Prosperity in 2009.

As far as I've read their downloadable PDF file , Legatum are basing their surveys from an objective data and subjective responses. These involve the status quo of every country in its stance.

Prosperity embodies health, personal freedom, wealth or financial security, good fortune, as well as environmental living, success, and flourishing. My country, Philippines, is enlisted in the rank 55th position.

I'm just curious why USA is enlisted at the 9th position. I thought, the USA are much bogged with the global financial crisis, but well, President Barack Obama did aleviate its prosperity back astir.

I've read the article from Yahoo, seemingly agreeing it's position. The country has it's economic boom, but their government and politics are too tight for me, to think of, when it comes to personal freedom.

One thing I might, in my opinion, have to be consider of, are countries tradition and the language. There are languages that are hard to learn, albeit English language is mostly used, but there are among the countries doesn't talk English. Filipinos are good though, and we have long lands too that I consider a paradise and as well, the "Prosperity" in its existence. I'm proud anyway Philippines is not too deep in the list.

Well, it is how we, humans, do create prosperity and so retain also the prosperity by our own nature and own values.

How about you? Do you have prosperity in life now?


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Tuesday, October 27, 2009

It's Gonna Make Sense - Michael Learns To Rock

My first impression for this song was from a boy band, and I hate boy band. Never knew that this from MLTR (Michael Learns To Rock) band. I love MLTR, of course, back in my younger years playing with my guitars.

Have a try to listening to their song. It's a pop song but it's actually a cool song.



I have pasted also the lyrics, so if you wanna song feeling like in a karaoke bar (so do I?), have fun singing the song.

It’s Gonna Make Sense

Life comes in many shapes
You think you know what you got
untill it changes

And life will take you high and low
you gotta learn how to walk
and then which way to go

Every choice you make
when you’re lost
Every step you take
has it’s cause

Chorus:
After you clear your eyes
you’ll see the light
somewhere in the darkness
After the rain has gone
you’ll feel the sun comes
and though it seems your sorrow never ends
someday its gonna make sense

Tears you shed are all the same
when you laughed ’till you cried
or broken down in pain

All the hours you have spent in the past
worrying about
a thing that didn’t last

Everything you saw
played a part
in everything you are
in your heart

Chorus:
After you clear your eyes
you’ll see the light
somewhere in the darkness
After the rain has gone
you’ll feel the sun comes
and though it seems your sorrow never ends
someday its gonna make sense

Release:
Someday you’re gonna find the answers
To all the things you’ve become and all they’ve done
At your expence
Someday it’s gonna make sense

Monday, October 26, 2009

Trouble WIth BIOS After a Failure Update Is Just an Easy Fix

Updating a computer BIOS is really trivial. Once you come up into trouble with your BIOS, like a failure during update, or an error that will cause it a failure update, might turn you into trouble by perhaps a total replacement of your motherboard, unless you are really prepared for things to do.

In my experience, it's not that, it's actually easier than what I think before taking an attempt to update. My CPU's motherboard is PM8PM-V from MSI.

I follow the guidelines I have read from MSI, using their live update, but it comes into trouble when it goes a failure update. Now, since I did skip the "Create a disk Recovery", where it needs a floppy drive (but who uses a floppy drive this days?), and now, I'm in trouble with my BIOS.

Since I have my floppy, but have never used for almost more than 2 years, now it seemed my floppy drive is a little bit dusty inside because it always fails to ready any floppy disk I have. Luckily, I have a floppy disk cleaner I bought last 2003, so that was 6 years ago LOL! I put my floppy cleaner and it works reading my floppies.

So back again, what I did is, I found my BIOS version that bypasses that LiveUpdate (only just files) which I get from here, http://forum-en.msi.com/index.php?action=dlattach;topic=124428.0;attach=5328. Then I save those files into my floppy diskette, and create an "AUTOEXEC.BAT" file with its contents "AWDFLH.EXE W7222VMS.330" (without the quotes).

After I reboot and after I encountered that failure on BIOS update using the window version update, I encountered this message, like the image shown below:

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Everything on my UI hardware stops to work like my mouse and my keyboard. When you encounter this trouble, the BIOS
by default will look for the floppy drive and detects if it's a BIOS program or not. If it's not a BIOS program, it will give you a message anyway.

After I put my floppy during reboot, the BIOS will be automatically be flashed and reads that content in the floppy I have stored. It will actually look or execute the AUTOEXEC.BAT and read it's contents inside that file.

Now, after flashing my BIOS, you will see a status of "complete" or a "reset" button will be colored. Now, you can push the reset button of your CPU, and everything will be back to normal.

Hence, my BIOS version also has been updated, and I conclude that, it was easier than i think of.

Sunday, October 25, 2009

Geocities Marks it's Goodbye on October 26, 2009

It's the mark of the end from the starter back on the early years of Yahoo. Founded by David Bohnett and John Rezner, the company is shutting down it's service effective this October 26, 2009. Maybe later, my time here is GMT +8:00.

Geocities have been a massive users using it's service. It's actually cool back then, some of it's competitors like Angelfire which was also ceased it's opertion in 2002.

Make HTML a PDF via Internet

There are many tools in the internet built now these days. One of the tools I mostly used is to convert a page, an HTML page, to PDF because I like PDF format to read and and shared also with my friends.

I use this tools in the net:
http://www.htm2pdf.co.uk/default.aspx
http://www.htmltopdf.co.uk/

And after I grab this pdf convert pages, I stored it via Google docs.

When storing in Google Docs, I do always make my documents in order so that it would be easier for me to locate things I need to find or use.

Try it, and it's really helpful to store your documents in PDF being centralized. PDF viewer from Google too is really awesome!

CCTV in Davao City Caught a Man Murdered

This video was caught on CCTV (Closed-Circuit Television) where a man, who was identified as Chris Anthony Togle, a City Hall employee
of Davao City.

Just watch the video below, and this guys are really exchanging bullets with the heat they feel without thinking they might be dead or they
would kill their fellowmen.

I hope there will be more CCTV's here in Davao.


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